Bitcoin will not get to $0, this dip is actually because it's a bear season and if you are looking for who will tell you when Bitcoin will go back to $80k,
I don’t know why people are always thinking bitcoin is going to zero whenever their is dip in the market. We should know that dip is normal in the crypto space, and whenever their is dip in the market, we should know that it’s another opportunity for us to buy bitcoin cheaply and not to create more fear. Bitcoin will never go back to zero, go and check bitcoin price history, and you going to know that bitcoin cannot go back to zero, and the dip happening now is just normal. Just give bitcoin few months, and you going to see that the price will bounce back.
If there was a chance of Bitcoin going to zero, many countries including the U.S, China, Russia and others won't allow it to be regulated or create reserve banks for it.
Centralized systems won't be so many giving Bitcoin investors options on where to buy or trade or hold their Bitcoin and am sure there would have been a wide spread rumor about the possibility of the maths failing, but this isn't the case.
The dip is a natural part of Bitcoin growth just as the bull run is and volatility is the engine that decides on which we experience at any time. So there's always a possibility that we wake in the morning and Bitcoin gets to $80k and continues to climb to an ATH.
The best bet is to always be prepared and decide on how to take advantage of the market and your current position to invest and get a good return in the future. It does not matter how small you start with, just start by DCA strategy and the rest comes as secondary input.